Arctic Sea Ice extent continues to be a problem. This year, according to the National Snow and Ice Data Center, ARctic Sea ice reached its lowest extent this year on September 17th, which is about the sixth lowest extent on record, following a multi-year trend of decline. There is variation from year to year. This year's minimum was almost exactly the same as last years. With the exception of 2001, minimum extent has been below the climatalogical average every year since 1998.
Dana Nuccitelli has a post on this with excellent discussion and some nice graphics, and he has also produced a new version of the animated "How 'Skeptics' View Arctic Sea Ice Decline" graphic, which I reproduce here:
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Arctic sea ice extent (& volume) is the metaphorical canary telling us we have a problem here - and we sure do. Just look at this :
'Arctic Sea Ice Minimum Volumes 1979-2012'youtube clip by Andy Lee Robinson.
See also :
The more things change ..
“I like ice also as an indicator of climate change for its political neutrality.
Ice asks no questions, presents no arguments, reads no newspapers, listens to no debates. It is not burdened by ideology and carries no political baggage as it crosses the threshold from solid to liquid. It just melts.”
-Dr Henry Pollack, geophysicist, University of Michigan.
Source : http://www.youtube.com/watch?feature=player_embedded&v=-wbzK4v7GsM
'Watts Up with Sea Ice?' Youtube video by Greenman3610 esp. 1 minute 14 secs to 1 minute 51 seconds.
PS. Just one more link if I may :
Especially the 2 minute 20 secs mark. Freeze the clip at the 2 minute 45 seconds instant. The red is the observed data.
Yes it is a few years out of date now -but things have not got better.
Think about the implications.
Ironically, they are chilling.